Tony Elumelu’s investment in Seplat Energy Plc has more than doubled in market value in less than a year, as stronger oil production, higher realised prices and a significant improvement in earnings have lifted the energy producer’s valuation.
Heirs Holdings, Elumelu’s investment company, acquired a 20.07 percent stake in Seplat for about $500 million in December 2025, purchasing 120.4 million shares from French energy company Maurel & Prom.
The stake is now worth more than $1 billion based on Seplat’s current market value, representing an unrealised gain of more than $500 million for Heirs Holdings.
The rapid appreciation has come as Seplat’s operating performance has strengthened following the integration of the Mobil Producing Nigeria Unlimited assets acquired from ExxonMobil.
Seplat reported N2.50 trillion in revenue for the first half of 2026, representing a 53 percent increase from the corresponding period of 2025.
Profit before tax rose 74 percent to N790.4 billion, while profit after tax increased more than fivefold to N225.5 billion, from N42.5 billion a year earlier.
The earnings improvement reflects a combination of higher production and stronger oil prices, providing the company with greater revenue generation and cash-flow capacity.
Average production increased to 139,509 barrels of oil equivalent per day (boepd) in H1 2026, compared with 134,492 boepd in the same period last year.
The increase followed the integration of the former Mobil Producing Nigeria assets, which significantly expanded Seplat’s operating base.
At the same time, the company benefited from stronger realised oil prices. Its average realised oil price climbed to $94.13 per barrel, from $72.58 a year earlier.
The combination meant Seplat generated more revenue from each barrel while also producing a larger volume of hydrocarbons.
Seplat’s stronger earnings have also been accompanied by an improvement in its balance sheet.
Interest-bearing borrowings declined from about N1.44 trillion at the end of 2025 to N1.11 trillion by June 2026, while cash increased to N598.3 billion.
The reduction in debt alongside stronger cash generation provides the company with greater financial flexibility and reduces the pressure associated with servicing borrowings.
That improvement is particularly significant following the company’s acquisition of the ExxonMobil assets, a transaction that substantially increased its production capacity but also increased the scale of its operations and financing requirements.
The latest numbers indicate Seplat is beginning to translate the enlarged asset base into stronger earnings and cash generation while simultaneously reducing financial leverage.
The improvement in Seplat’s financial and market performance has significantly increased the value of Elumelu’s investment.
Heirs Holdings remains the holder of the 120.4 million shares, meaning the increase in Seplat’s share price has directly increased the market value of the group’s investment.
The gain, however, remains unrealised, as Heirs Holdings has not sold its stake.
The investment has also given Elumelu a more direct role in the energy company.
He joined Seplat’s board as a non-executive director in January 2026 and is expected to become chairman from January 1, 2027.
The development places Elumelu at the centre of the company’s next phase as Seplat integrates its expanded asset portfolio and seeks to sustain production and cash-flow growth.
The transformation in Seplat’s performance is closely linked to its acquisition of the former ExxonMobil assets in Nigeria.
The transaction materially increased the company’s production base and strengthened its position in Nigeria’s upstream oil industry.
The H1 2026 figures showcase that the enlarged portfolio is beginning to deliver significant financial benefits, particularly when combined with higher realised oil prices.
The trajectory has transformed what was initially a $500 million strategic investment into a holding worth more than $1 billion in market terms.
The gain underscores the potential payoff from Elumelu’s decision to take a significant position in Seplat shortly before the company began reporting the benefits of its expanded production base.
The critical question for the market now is whether Seplat can sustain the production gains, oil-price benefits and cash generation that have driven the latest re-rating.
If those improvements persist, Elumelu’s more-than-doubled investment value could represent not merely a market windfall, but the early return from a strategic bet on the expansion of Nigeria’s independent energy sector.
